@KodeZwerg. Thank you, I searched in the forum and over the net for the PreviewText information you provided now, but could't find it.
@GetMem: Thank you for the warm welcome. The forum community has nothing to worry about: I'm neither a spammer nor a lurker. I've been clarifying my doubts reading lots of excelent forum contributions on the past year and a half, or so. They are so good that I never needed to post any question, till now.
Your handler works perfectly. Very clever and elegant solution. Thank you!